Liquid filter



Nov. 11 1924 1,514,979

T. F. M MILLIN LIQUID FILTER Filed Sept. 26 1922 Patented Nov. 11, 1924.

THOMAS F. LMGMILLIN, OF STREATOR, ILLINOIS.

LIQUID FILTER.

Application filed September 26, 1922. Serial No. 590,740.

To all whom it may concern Be it known that I, THOMAS F. M0- MILLIN, a citizen of the United States, and resident of Streator, in the county of La Salle and State of Illinois, have invented certain new and useful Improvements in Liquid Filters, of which the following is a specification.

My invention relates to liquid filters of the portable type, particularly intended for straining and cleansing milk, and my improvements consist in the provision of a structure that is sanitary in every respect; that may be disassembled quickly and easily for cleaning purposes and as readily reassembled after cleaning; that eliminates the possibility of liquid collecting therein and becoming lost; and that is simple, cheap, extremely durable, and thoroughly reliable and ellic-ient in operation.

With the foregoing and other purposes in View, my invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the ac companying drawings and particularly defined in the appended claims.

In the drawings wherein like characters of reference denote corresponding parts in the different views Figure 1 is a longitudinal section of a filter embodying the novel and essential characteristics of my invention;

Figure 2, a fragmentary top plan view; and

Figure 3, a detail of one of the screen sections.

Referring now to the drawings in detail, 10 designates a cylinder formed preferably from a section of seamless metallic tubing and adapted to be supported in horizontal position in any preferred manner as for instance by means of a saddle 11 mounted on a rod or pipe 12 rising from a base block 13, in which event the rod is made rotatably adjustable with respect to either the cylin-- der or base block or both, whereby the cylinder may be moved conveniently from one position to another as may be desired during its use. Near one of its open ends and in the lowermostportion of the wall thereof said cylinder is provided with a liquid inlet opening 14, while similarly, near its other open end and in the lowermost por- 'tion of the wall thereof it is provided with a liquid outlet opening 15, both openings being provided with suitable sanitary pipe fittings whereby the device may be connected with a source of liquid supply'and with a container to receive the liquid after it has passed through the device and been filtered thereby.

A closure16 in the form of a flanged plug is provided .for each end of the cylinder and, as shown, the cylinder ends and the plugs are tapered so that fluid tight joints are provided without the use of gaskets or similar devices when the closures are arranged in closed position. Each closure is pivoted as at 17 to a bar 18 which in turn in pivoted at one end to the cylinder as at 19 while at its other end it 'is forked to receive a rod 20 which is also pivoted to the cylinder and provided with a screw device 21 whereby said forked end and consequently the plug may be drawn into tight closing engagement with the cylinder, the two pivots 17 and 19 permitting self adjustment of the tapered portions of the plug and cylinder as is apparent.

Adapted to be removably mounted with in the cylinder in end to end relation is a plurality of screen supports, three being shown in the present instance and deslgnated respectively at 22, 23 and 24, the

first and last being of duplicate construction, but adapted to be arranged in reversed relative relation within the cylinder, while the support 23 is of somewhat different construction and adapted to be disposed between the first mentioned sections in the manner indicated. Each of said supports consists of a pair of relatively spaced rings 25 and 26 rigidly connected by rods 27 and in each instance the rings are of substantially the same external diameter as the internal diameter of the cylinder whereby they are slidable therein and have a neat fit. In respect to the support 23 both of the rings are inclined with respect to a horizontal respect to the horizontal and the other is perpendicular thereto. Thus, the three supports may be arranged in end to end relation with their inclined ends or rings disposed adjacent to each other, which results in the perpendicularly disposed rings being located outermost, so as to be engage able with the closures 16 when the latter ports, while between the cotton and the in clined ring 25 of the support 24 (the one nearest the outlet opening 15) is placed a dish of wire gauze or other small mesh material 28, the purpose of which is to prevent lint from the cotton being carried oil with the liquid filtered through the device. lVith the parts arranged as described closing and fastening of the closures 16 serves to clamp the respective screen supports and filtering elements together in proper relative relation.

In operation the milk or other liquid to be filtered enters through opening 14: and passes through the absorbent cotton 2, foraminous disks 26 and the gauze 28 and passes out throughopening 15 after all foreign matter has been removed therefrom by the cotton, which latter, because of its inclination due to the inclination of the screen support rings, cooperates with grayity to cause any sediment to collect in the bottom of the cylinder from whence it may be readily removed when the closures are opened and the screen sections and cotton withdrawn for cleaning purposes.

I claim:

1. A filter comprising a cylinder havin inlet and outlet openings, a closure for eacn end of said cylinder, a plurality of screen supports arranged within said cylinder and retained therein by said closures and filteriii-g material disposed between adjacent screen supports, each of said screen supports including a pair of relatively spaced rings and each of the supports adjacent to the respective closures having one ring disposed at right angles to the aXis of said cylinder and the other inclined with respect to said axis.

2. A filter comprising a cylinder having inlet and outletopenings, a closure for each end of said cylinder a pair of screen supports of duplicate construction within said cylinder one adjacent to each closure. each of said screen supports including a pair of spaced rings the outermost of which is disposed at right angles to the axis of said cylinder and the innermost of which is inclined with respect to said axis, a third screen support arranged between sail first mentionet screen support, and filtering ma terial disposed between said third screen support and each of said first mentioned screen supports. said third screen support including a pair of spaced rings each of which is inclined with respect to the axis oi said cylinder.

3. A filter comprising a cylinder having inlet and outlet openings, a closure for each end of said cylinder, a pair of screen snpports of duplicate construction within said cylinder one adjacent to each closure, each of said sc een supports including a pair l? spaced rings the outermost of which is disposed at right angles to the axis Or. said cylinder and the innermost of which is in clined with respect to said axis, the inclined rings of the respective supports being disposed in parallelism, a third screen support arranged between said first mentioned screen supports, and filtering; material disposed between said third screen support and each of said first mentioned screen supports said third screen support including a pair of spaced rings each of which is inclined witl i respect to the axis of said cylinder and dis posed in parallelism with the inclined rings ot said first screen supports.

In testimony whereof I hereunto afiix my signature.

THOMAS F. lilcliHLLIN. 

